Since its establishment in 1964, Ohtama Co., Ltd. has been recognized in the industry as a maker specialized in magnetic shielding with Permalloy

Recently,
the performance of electron beam devices has been improved remarkably.
Thus permissible limit values of magnetic fields have become strict
more and more.
This product is a magnetic field generator to provide stable magnetic
fields. It can detect magnetic field noises with a high-sensitivity
magnetic field controller, and generates a magnetic field to cancel
the noise with Helmholtz coil for three-axis (X,Y and Z).
With the introduction of this canceller, it is now possible to ensure
the full performance of electron beam devices even in places where
their magnetic field environments are extremely unstable.